Electric low-level signal for gasolene-tanks.



0. 0. GARE. ELEGTRIU LOW LEVEL SIGNAL FOR GASOLENE TANKS.

APPLICATION FILED MAR. 19, 1910. f

Patentaai Apr rear orator...

ORA G. CARE 03: LANSING, MICHEG'A'N.

nal device designed more especially for use in connection with gasolenetanks for automobiles, whereby the operator Wlll be warned when thegasolene reaches a'predetermined level so ,as to eanable him to rechargethe tank at the most available place.

The invention has for one of its objects to provide an electric signalor indicating device including a circuit closer that is operated by afloat so as to close a circuit which includes a valve or other signal.for warning the operator. u Another object of the invention is the provision of an extremely simple, inexpensive andreliable level indicatorwhich can be applied to any ordinary gasolene tank or the like andconnected in a signal circuit.

With these objects in view, and others as will appear as thedescription. proceeds, the invention comprises the various novelfeatures of construction and arrangement of parts which will be morefully described hereinafter and set forth with particularity in theclaims appeirded hereto.

In the accompanying drawing, which illustrates one embodiment of theinvention; Figure 1 is 1 side view of the float actuated circuit closeradapted to be applied to a liquid-containing tank. Fig. 2 is a central"1 lower end ofthis wire is a stop which to designate cor'respomlingparts throughout the several views.

The device comprises a tubular body 1, which is adapted to he placedvertically in the tank to which the level indicator is to be applied,and this tubular body constitutes a housing and guide for a float 2freely movable vertically in the body, the latter having openings 3 and4 to admit gasolene under the lioat and air above the same. ()11 theupper end of the tube 1 is a cap 5 that exteriorly threaded at 6 toscrew into a threaded opening in the top of the tank and the tube is ofsuch length as to extend close Specification of Letters Batent.

ELECTRIG LOW-LEVEL SIGNAL FUR GASOLENE-TANKS.

Patented a ee, 1911.

application filed March 19, 1910. Serial No. 550,399.

to the bottom of the latter. The cap has a hexagonal flange 7,whereby awrench can be gripped to the cap in applying the device to or removingit from the tank. The tube 1 is removably connected With the cap byscrewing into an annular flange 8 on the bottom oithe cap. The cap isprovided with a chamber 9 which is closed by a cover plate 10 ofinsulating material, and this plate is fastened to the cap by screws 11extending through the cover and the flange 7.

In the chamber 9 is arranged a circuit closer consisting of a fixedcontact 12 and a movable contact13. The fixed contact is secured to theunderside of the cover 10 by a screw 13 that serves to connect thebinding post 14 securely on the cover. The lever is fulcrumed at 15 on ascrew 16 that passes through the cover'and secures the binding post 17thereto. The head of the screw 16 is formed with spaced lugs 18 betweenwhich the lever extends and the pivot 15 passes through these lugs andlever to connect the latter with the screw. On the lever is fastenedaleafspring 19 that has its free end extending between the lugs 18 andslidably engaging the head of the screw 16. the springs hein normallyunder a tension 0 )eratin to e l a the float strikes when the level inthe. tank lowers to a given point. The upper end of the wire 20 isconnected by a link 23 with the movable contact 13 adjacent its freeend. the link passing freely through. an opening 24 in the bottom of thecap 5. The lower end of the link has an eye 25 through which the wire 20passes and by bending the wire downwardly into a hook 26, the link andwire will be detachably connected. The wire can be readily lengthened orshortened by changing the point of bending and in this manner, the stop22 can be raised or lowered and thus cause the circuit closer tocomplete the circuit when the level in the tank has lowered to apredetermined point.

In practice. the binding posts will he'connected with a circuitincluding a battery or other source of current and hell audible orsignal device l operated. When he tent; is fall Will be disposed theupper end. of the tul-- ing 1 and the circuit closer will be open sincethe Weight of the float is not brought to hear thereon. As the gasolenois consumed the float lowers and. finally strikes the stop 22oz]. thepull Wire 530, and as the level continues to lower, the swinging contact13 Will he engaged with the contact 12 so as to complete the signalcircuit a. d thus Warn the operator asto the (03.. .ts of the gasolenetank.

From the ttoregoing description taken, in

connection With the accompanying draiv- I ings, the advantages of theconstruction and of the method. of operation. will be readily apparentto those skilled in the art to which the invention. relates, and WhileI. have doscrihed the principle of operation of the invention, togetherwith the device which I now consider to he the best einbodii'ncntthereof, I desire to have it understood. that the device shown is merelyillustrative and that. such changes may he made when desired as areWithin the scoge oi the claims.

What i claim as new and desire to by Letters Patent is l. A device of:the class comprising a tubular casing, a chambered cap on tho upper endthereof for attaching the device to a tank, a circuit closer arra god inthe chamber or the cap and including relatively movable contacts,binding posts on the caf; and connected to the contacts, a float in thecasing, an element connected with the movable contact f the circuitcloser and extending into the casing, and means on the element withwhich the float engages when the level reaches a predc terniined pointfor closing the circuit closer. 2. A device of the class (lOSC1'1l)B(icont 1 prising a hollow body, a float freely inovicrein, a chanihereocap on the upper the body, a cover plate of insulation the cap, titted.contact in the cap, cling post secured to the cover plate andelectrically connected with the contact, movable contact in the cap, abinding post secured to the cover olate and connected with the movablecontent, a spring carried by the movable contact and operating to holdthe in open circuit position, an element and extending into the body,and means the element actuated by the float for ena U the 'inovahlecontact with the fixed contact when the float lowers to a predeicrminedposition. I i

3. A device of the class described, C0111 prising a tulmlar casing, afloat freely inovable therein, a chambered cap on the upper end of thecasing for securing the latter to a tank, a cover plate of insulationscoured to the cap, a circuit closer supported by lilo. covor plate andarranged in the chamber oi the cap and including a movable element,means for actuating the element by the float, and binding posts on thecover plate for connecting the circuit closer in circuit with a signal,said circuit closer including a fixed contact with which the movablecontact l to engage, screws for securing the cont-a to the cover plateand to the hindlng posts, a pivotal commotion between. the

movable contact and one of the screws, and a spring carried by themovable contact and pressing against the screw for holding the movablecontact normally in open circuit position.

In testimony whereof l atlii; my signature in presence ot tvvoWitnesses.

' ORA C. CARR.

llitnesses BE.I-X1\IE'JTI' S. Jones, Cim'rrm Enron/a1.

